The management of poultry by-products focuses on soil, water and air quality issues.

家禽副产品的管理主要涉及土壤、水资源和空气质量问题。

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A: on your first question, China attaches great importance to Beijing's environment, air quality and traffic issues during the Olympics, and makes unremitting efforts to resolve these problems.

答：关于第一个问题，中方高度重视奥运会期间北京的环境、空气质量和交通等问题，也在努力解决这些问题。

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You'll also learn environmental issues, such as air quality controlling.

你还将学习一些环境问题，像空气质量管理。

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We do have air quality issues but nothing like many other big cities.

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But the findings are significant to any region with air quality issues.

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Edison is very concerned about local ambient air quality and environmental-justice issues.

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